package com.common.base;

import jdk.nashorn.internal.parser.DateParser;

public class BaseTypeClassTest {
    public static void main(String[] args) {
        /*Double aDouble = Double.valueOf(12.345f);
        long l = Double.doubleToRawLongBits(aDouble);
        System.out.println(l);*/

        String substring = "000";
        System.out.println(substring.matches("[0]*"));
    }
}
